Comment by codedokode

Exactly. The author doesn't give any references, just says "Trust me, it is the same code". Maybe the author doesn't know that there are many resources with reverse-engineered descriptions of undocumented kernel structures and functions, for example [1] [2]

[1] https://www.nirsoft.net/kernel_struct/vista/index.html

[2] http://msdn.mirt.net/